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$600+ Cheap flights from Heathrow (LHR) to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Knoxville McGhee Tyson are usually found in November or March, booked 80 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$754
(United Airlines)

One-way from

$600
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,173
From London Heathrow to Knoxville McGhee Tyson
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One-way flight from London Heathrow to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 16% potential increase in price ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Heathrow to Knoxville

Cheapest flights from Heathrow to Knoxville
Explore the most affordable flight options available from Heathrow to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:40 amLHR - TYS
2 stops30h 49mUnited Airlines
Sun 10/197:15 amTYS - LHR
1 stop19h 25mUnited Airlines
Deal found 7/27$754
This Air Canada deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/102:05 pmLHR - TYS
2 stops14h 52mMultiple Airlines
Wed 9/179:55 amTYS - LHR
3 stops15h 35mMultiple Airlines
Deal found 7/27$770
This TravelUp deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/911:05 amLHR - TYS
1 stop16h 30mLufthansa
Sat 8/166:58 pmTYS - LHR
1 stop10h 42mLufthansa
Deal found 7/27$777
This Expedia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1610:05 amLHR - TYS
1 stop12h 43mBritish Airways
Sun 10/196:15 pmTYS - LHR
1 stop31h 25mBritish Airways
Deal found 7/27$874
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/118:40 amLHR - TYS
2 stops17h 37mDelta
Fri 12/1912:00 pmTYS - LHR
2 stops13h 20mDelta
Deal found 7/28$953
This Scandinavian Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:40 amLHR - TYS
3 stops22h 04mScandinavian Airlines
Fri 9/191:52 pmTYS - LHR
2 stops18h 43mScandinavian Airlines
Deal found 7/29$1,052
This Netflights deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/269:40 amLHR - TYS
2 stops19h 08mVirgin Atlantic
Tue 9/164:13 pmTYS - LHR
2 stops13h 17mVirgin Atlantic
Deal found 7/29$1,296

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

Fly from

Heathrow

Fly to

Knoxville

Route

Depart

Return

Price

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 10/16

8:40 am-10:29 am

2 stops30h 49m

Knoxville McGhee Tyson

Sun 10/19

7:15 am-7:40 am

1 stop19h 25m

$754

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/10

2:05 pm-11:57 pm

2 stops14h 52m

Knoxville McGhee Tyson

Wed 9/17

9:55 am-6:30 am

3 stops15h 35m

$770

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 8/9

11:05 am-10:35 pm

1 stop16h 30m

Knoxville McGhee Tyson

Sat 8/16

6:58 pm-10:40 am

1 stop10h 42m

$777

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 10/16

10:05 am-5:48 pm

1 stop12h 43m

Knoxville McGhee Tyson

Sun 10/19

6:15 pm-6:40 am

1 stop31h 25m

$874

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 8/11

8:40 am-9:17 pm

2 stops17h 37m

Knoxville McGhee Tyson

Fri 12/19

12:00 pm-6:20 am

2 stops13h 20m

$953

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 9/12

6:40 am-11:44 pm

3 stops22h 04m

Knoxville McGhee Tyson

Fri 9/19

1:52 pm-1:35 pm

2 stops18h 43m

$1,052

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 8/18

11:20 am-6:31 pm

1 stop12h 11m

Knoxville McGhee Tyson

Fri 8/22

6:14 pm-1:30 pm

1 stop14h 16m

$1,113

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 8/18

7:40 am-9:13 pm

2 stops18h 33m

Knoxville McGhee Tyson

Fri 8/22

5:27 pm-7:25 pm

2 stops20h 58m

$1,168

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 8/26

9:40 am-11:48 pm

2 stops19h 08m

Knoxville McGhee Tyson

Tue 9/16

4:13 pm-10:30 am

2 stops13h 17m

$1,296

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 9/16

6:10 pm-10:50 pm

3 stops57h 40m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 13 results
1
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Best time to book a flight from Heathrow to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Knoxville

How far ahead should I book a flight from London Heathrow Airport to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Knoxville. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knoxville, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $294). Flying from London Heathrow Airport to Knoxville in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, KLM, and United Airlines from London Heathrow Airport to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Scandinavian Airlines
7.3
Good
1,449 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knoxville from London Heathrow?

    For a flight from London Heathrow to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 inbound flights from London Heathrow per day. 1 airline has flights to Knoxville McGhee Tyson from London Heathrow on a regular basis.

  • What are the cheapest airlines flying from London Heathrow Airport to Knoxville round-trip?

    Currently priced at $754, United Airlines will fly you from London Heathrow Airport to Knoxville and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and British Airways - these airlines can fly you to your destination from $777 and $874, respectively. United Airlines is priced at 16% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Knoxville one-way?

    $609 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Lufthansa and Scandinavian Airlines, with prices starting from $716 and $2,548, respectively.

  • Can I find deals for flights from Heathrow to Knoxville that include hotel bookings?

    Yes. In addition to deals on Heathrow to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Knoxville.

  • Can I find deals for business class flights from Heathrow to Knoxville?

    Yes. Cheapflights offers flight deals from Heathrow to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $294). Flying from London Heathrow Airport to Knoxville in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

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Top airline flying from Heathrow to Knoxville

Discover the top airline that operate flights from Heathrow to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$720Average$1,259FlexibilityNo cancel feeOn-time70%

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